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CA $170 Cheap Flights from Chicago (ORD) to Seattle (SEA)

View CA $170 flight on Tue, Aug 18, 2026Opens in a new window

Popular airlines from Chicago O'Hare International Airport (ORD) to Seattle-Tacoma International Airport (SEA)

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Cheap flights from Chicago (ORD) to Seattle (SEA)

Prices were available within the past 7 days and start at CA $170 for one-way flights and CA $459 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Oct 19 - Fri, Oct 23
ORD
Chicago
SEA
Seattle
CA $459 Roundtrip, just found
CA $459
Roundtrip
just found
Select American Airlines flight, departing Mon, Oct 19 from Chicago to Seattle, returning Fri, Oct 23, priced at CA $459 just found
American Airlines
Mon, Oct 19 - Fri, Oct 23
ORD
Chicago
SEA
Seattle
CA $466 Roundtrip, just found
CA $466
Roundtrip
just found
Select American Airlines flight, departing Mon, Oct 19 from Chicago to Seattle, returning Fri, Oct 23, priced at CA $466 just found
American Airlines
Mon, Oct 19 - Fri, Oct 23
ORD
Chicago
SEA
Seattle
CA $480 Roundtrip, just found
CA $480
Roundtrip
just found
Select American Airlines flight, departing Mon, Oct 19 from Chicago to Seattle, returning Fri, Oct 23, priced at CA $480 just found
Alaska Airlines
Wed, Oct 7 - Wed, Oct 14
ORD
Chicago
SEA
Seattle
CA $506 Roundtrip, found 5 days ago
CA $506
Roundtrip
found 5 days ago
Select Alaska Airlines flight, departing Wed, Oct 7 from Chicago to Seattle, returning Wed, Oct 14, priced at CA $506 found 5 days ago
American Airlines
Tue, Aug 4 - Tue, Aug 11
ORD
Chicago
SEA
Seattle
CA $508 Roundtrip, found 4 days ago
CA $508
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Aug 4 from Chicago to Seattle, returning Tue, Aug 11, priced at CA $508 found 4 days ago
Alaska Airlines
Tue, Aug 4 - Tue, Aug 11
ORD
Chicago
SEA
Seattle
CA $512 Roundtrip, found 4 days ago
CA $512
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Tue, Aug 4 from Chicago to Seattle, returning Tue, Aug 11, priced at CA $512 found 4 days ago
American Airlines
Thu, Aug 6 - Tue, Aug 11
ORD
Chicago
SEA
Seattle
CA $514 Roundtrip, found 6 days ago
CA $514
Roundtrip
found 6 days ago
Select American Airlines flight, departing Thu, Aug 6 from Chicago to Seattle, returning Tue, Aug 11, priced at CA $514 found 6 days ago
United
Tue, Jul 21 - Tue, Jul 28
ORD
Chicago
SEA
Seattle
CA $536 Roundtrip, found 4 days ago
CA $536
Roundtrip
found 4 days ago
Select United flight, departing Tue, Jul 21 from Chicago to Seattle, returning Tue, Jul 28, priced at CA $536 found 4 days ago
Sun Country Airlines
Fri, Sep 11 - Sun, Sep 13
ORD
Chicago
SEA
Seattle
CA $672 Roundtrip, found 11 hours ago
CA $672
Roundtrip
found 11 hours ago
Select Sun Country Airlines flight, departing Fri, Sep 11 from Chicago to Seattle, returning Sun, Sep 13, priced at CA $672 found 11 hours ago
JetBlue Airways
Wed, Oct 7 - Wed, Oct 14
ORD
Chicago
SEA
Seattle
CA $702 Roundtrip, found 5 days ago
CA $702
Roundtrip
found 5 days ago
Select JetBlue Airways flight, departing Wed, Oct 7 from Chicago to Seattle, returning Wed, Oct 14, priced at CA $702 found 5 days ago

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Seattle - Tacoma Intl. SEA. Cheapest option available. Average driving time to city centre is 20 minutes. Flights from CA $585
SEA
Seattle - Tacoma Intl.
Cheapest
Average driving time to city centre20 min
Flights from CA $585

Frequently asked questions

How much does a flight from Chicago, IL (ORD) to Seattle, WA (SEA) cost?
You can find cheap one-way flights from CA $170 and cheap return flights from CA $459 ORD to SEA with Expedia. One-way flights typically cost between CA$290 and CA$1,152 and return flights often range between CA$598 and CA$1,891. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when ORD to SEA ticket fares go up or down.
What is the cheapest month to fly from Chicago, IL (ORD) to Seattle, WA (SEA)?
The cheapest months to fly from Chicago, IL (ORD) to Seattle, WA (SEA) are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There are 5 airlines offering direct flights from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.). Here are some of the top carriers:
  • United operates 47 direct flights from ORD to SEA every week.
  • American Airlines operates 38 direct flights from ORD to SEA every week.
  • Delta operates 23 direct flights from ORD to SEA every week.
  • Qatar Airways operates 33 direct flights from ORD to SEA every week.
  • Finnair operates 9 direct flights from ORD to SEA every week.
How do I find cheap flights from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best airline to fly with from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, Alaska Airlines typically offers the lowest fares. United offers the most daily flights from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The cheapest months to fly from Chicago O'Hare International Airport (ORD) to Seattle-Tacoma International Airport (SEA) are typically September and February, with average return flights around CA$359. The most popular months for this route are May and August, which means you'll find plenty of flight options during these times. While there isn't a single month that is both the cheapest and most popular, if you're looking for the best value, aiming for September or February could save you money, and you'll still have a good selection of flights.
How many flights per day from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You'll find approximately 16 nonstop flights per day from Chicago O'Hare International (ORD) to Seattle-Tacoma International (SEA). For even more choices, look at flights that include layovers, as there are around 169 connecting flights per day. Some common connection points include Denver International (DEN), Dallas-Fort Worth International (DFW), and San Francisco International (SFO).
What is the earliest flight from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Chicago O'Hare International Airport (ORD) to Seattle-Tacoma International Airport (SEA) typically departs around 12:00 AM local time. This flight is operated by American Airlines. This is a seasonal service, active only in December. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You'll generally find the most flights from Chicago O'Hare International Airport (ORD) to Seattle - Tacoma International Airport (SEA) on a Thursday, with around 101 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United, American Airlines, and Alaska Airlines. Flight schedules are quite consistent throughout the week, so you'll have a good selection of flights no matter which day you choose to fly.
What are the most popular departure times for flights from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) are in the morning, from 6am to 9am. Many major carriers, including Alaska Airlines, American Airlines and Delta, offer flights during this window. Many travellers prefer these early morning flights as they allow you to arrive at your destination with plenty of time to start your day.
How long does it take to fly from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
When flying from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.), you'll cover a distance of approximately 2762 kilometres. A nonstop flight typically takes around 4 hours 48 minutes. If you opt for a flight with one stop, your travel time will generally be longer, averaging about 9 hours. Flights with two or more stops usually take around 10 hours. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic.
Can you fly business or first class from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You can fly business class or first class between ORD and SEA. You can fly business class with Frontier Airlines and Delta.First class cabins are available on Alaska Airlines, Delta, United, and American Airlines.
How much is a business class flight from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
A direct, return business class ticket from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically costs between CA$1,907 - CA$2,791. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) if you opt for a connecting flight.
How do I earn miles on a Chicago, IL (ORD) to Seattle, WA (SEA) flight with Expedia?
It's easy to earn miles on a Chicago, IL (ORD) to Seattle, WA (SEA) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle, WA (SEA) from Chicago, IL (ORD)?
If you're planning to travel to Seattle from O'Hare Intl. (ORD), you can fly directly into Seattle - Tacoma Intl. (SEA) which offers international flights and connections. Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), San Diego Intl. (SAN), or Portland Intl. (PDX) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Chicago, IL (ORD) to Seattle, WA (SEA) at the last minute?
Typically, booking a last minute flight from Chicago, IL (ORD) to Seattle, WA (SEA) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Chicago, IL (ORD) to Seattle, WA (SEA) flight and hotel package?
Securing a Chicago, IL (ORD) to Seattle, WA (SEA) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Chicago, IL (ORD-O'Hare Intl.) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
O'Hare Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, JetBlue Airways, Sun Country Airlines, United
Roundtrip price
CA $459
Distance
2745 km
Average flight time
2 hours 37 mins

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Chicago to Seattle Flights

The easy way to book your flights from Chicago to Seattle 

With Expedia, it’s simple to find and book flights to Seattle from Chicago whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Seattle - Tacoma Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Chicago to Seattle today, tomorrow, or this week.  

 

Save dollars with cheap flights from O'Hare Intl., ORD to Seattle - Tacoma Intl., SEA 

Sort your search results by price to find great deals on your flight from Chicago to Seattle—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Seattle from Chicago currently is just CA $459 rising to CA $702.  

Here are more money-saving tips: 

  • Fly in October when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Seattle  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Seattle from Chicago 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Seattle with Expedia today.

Chicago to Seattle Flights

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